Multiple gas burner for furnaces



Sept- 4, 1951 c. E. FEINBERG 2,567,013

MULTIPLE GAS BURNER FOR FURNACES Filed March 28, 1946 0744.64 5Air/Nase@ 27150K 3f QL/7M Patented Sept. 4, 1951 UNITED STATES PATENTOFFICE 1 Claim.

This invention relates to a gas burner, and more particularly to aburner construction adapted for house or building heating.

Heretofore in construction of this type, there has been the problem ofmost efficiently utilizing the combustible mixture of gas and air.

It is therefore the object of the present invention to provide a novelgas burner construction designed to effect the greatest utilization ofthe heat of combustion. y

It is the further object of this invention to provide a novel gas burnertip having a plurality of longitudinally arranged slotted flame sourceswhereby the flames produced have an upward wall sweeping or washingeffect to produce the maximum transfer of heat to the furnace wall.

It is the still further object of this invention to provide a hollow gasmanifold upon which are positioned a plurality of radially arrangedburner tips, each of which has a plurality of spaced longitudinallyslotted arcuate flame sources, whereby a plurality of substantiallycontinuous concentric rings of flame are produced to upwardly impingeand sweep over the furnace walls.

These and other objects will be seen from the following specificationand claim in conjunction with the appended drawing in which:

Figure 1 is a prospective View of the complete burner.

Figure 2 is an elevational section of the burner positioned within afurnace which is fragmentarily shown; and

Figure 3 is an enlarged elevational section of a single burner tip andits mounting upon the gas manifold.

It will be understood that the above drawing illustratesmerely onepreferable embodiment of the invention, and that other embodiments arecontemplated Within the scope of the claim hereafter set out.

Referring to the drawing, a hollow furnace shell II is fragmentarilyshown, within which is positioned the hollow cylindrical base I2 incentral spaced relation.

The annular furnace flre walls I3 and I4 mounted on base I2 have avertical axis and form a fire chamber providing means of transferringthe heat of combustion to the air, for instance, which passes throughthe space I5 for subsequent direction to various parts of the buildingto be heated in the conventional manner.

The gas burner (Figure 1) is centrally positioned within fire walls I3and I4, with its gas manifold I6 adjustably mounted upon the three legsI1. The latter slidably extend through openings in flanges I8 throughwhich are threaded transverse locking studs I9. Thus manifold I6 may beadjustably arranged at the proper level for the particular fire chamberemployed.

Hollow circular gas manifold I6 of substantially rectangular crosssection has a plurality of radially spaced threaded openings withinwhich are positioned threaded nipples 20, preferably made of brass. Ahexagonally shaped nut portion 2| is provided to facilitate thepositioning of said nipples securely within manifold I6. It will beunderstood that manifold I6 may be of some other shape such asrectangular, if desired.

The lower open ends 22 of hollow burner tip housings 23 are slidablypositioned over the upright portions 23 of said nipples. The enlargedgas intake opening 24 of nipple 20 terminates in the constricteddischarge opening 25 for conducting gas at increased velocity intomixing chamber 26.

As illustrated in Figure 3, air intake openings 21 are provided inburner tip 23 so that the stream of gas into chamber 26 draws with it asupply o1 atmospheric air to produce a highly combustible mixture withinchamber 26.

Burner tip 23 has a plurality of stepped hollow transversely curvedprojecting portions 28, 29 and 30 with horizontally slotted outlets 3|.Member 28 extends outwardly the farthest, with members 29 and 30 beingstepped and spaced inwardly.

As shown in Figure 1 it will be seen that burner tips 23 are arranged`so that the slotted curved outlets 3| respectively of each of theburner portions 28, 29 and 30 form substantially continuous concentriccircles.

'I'hus it is clear that, when ignited, a plurality of substantiallyconcentric circles of llame are produced which sweep upwardly againstthe inner walls of re chamber I 3-I4. Members 28 produce a circle offlame of maximum diameter, while members 30 produce a concentricelevated circle of iiame of least diameter. At the same time anintermediate concentric circle of flame is produced from the mouths 3|of members 29.

It has been found that longitudinally curved slotted outlets 3| providea particularly effective ame characteristic for yielding the maximumheat to the maximum surface area of fire walls Due to the upward draftthrough the furnace it has been found that the concentric circles offlame have an upward rolling and wall-sweeping or wall-washing eilect toproduce the maximum heat transfer.

The circular spacer manifold plate 32 has an annular flange 33 whichdepends downwardly and projects between the spaced vertical projectingportions 34 of burner tips 23 to eectively support said tips in thecircular arrangement shown in Figure 1.

A plurality of openings 35 are formed within the top of plate 32 topermit the upward passage of air through the furnace. Hollow gasmanifold I5 has a threaded fitting 36 towhich may be joined a suitablegas source which is distributed to the plurality of burner tips 23through the interconnecting nipples 20.

Having described my invention, reference should now be had to the claimswhich follow for determining the scope thereof.

1 claim:

The combination, annular walls having a vertical axis and forming airechamber, a circular gas manifold therein coaxial with said ire chamberand joined to a gas source, a plurality of spaced vertically extendinggas burners cir- -cumferentially distributed and joined to saidmanifold, and a plurality 0f vertically spaced sector shaped coaxialburner tips on each burner, with the arcuate portion of each tip havinga horizontal elongated constricted and outwardly directed outlet slot,the corresponding burner tips of said burners at corresponding levelsbeing arranged in substantially coaxial circles of vertically decreasingradii, and arranged for impingement upon said re chamber.

CHARLES E. FEINBERG.

REFERENCES CITED The following references are of record in the le ofthis patent:

' UNITED STATES PATENTS Number Name Date 977,214 Muirhead Nov. 29, 19101,142,098 Hopkins June 8, 1915 1,246,523 Backstrom Nov. 13, 19171,262,431 Backstrom Apr. 9, 1918 1,481,189 Daniels Jan. 15, 19241,649,218 Gilbert Nov. 15, 1927 1,768,234 Davis June 24, 1930 1,950,470Bellamy Mar. 13, 1934 2,070,859 Howe Feb. 16, 1937 2,190,768 Bryant Feb.20, 1940 2,210,228 Beckett Aug. 6, 1940 FOREIGN PATENTS Number CountryDate 42,768 Austria June 25, 1910 113,239 Great Britain of 1918

